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United States Patent | 5,575,092 |
Smit | November 19, 1996 |
The dragline bucket has a basket (12) with an open from end and an open top defined by bottom, side and rear walls (14, 16, 18). Cheek plate structures (44) of fabricated steel plate construction are carried by the side walls at the front end of the basket and themselves carry drag attachment points (46). There is a lip plate assembly (52) of fabricated steel plate construction at the front of the bottom wall (14) and carrying attachment points for excavating teeth. An arch (38) of hollow, fabricated steel plate construction which spans over the front end of the basket and carries dump rope attachment points. The cheek plate structures, the lip plate assembly and the arch are connected to one another to form a ring of continuous, fabricated steel plate construction at the front end of the basket.
Inventors: | Smit; Andries J. (Hendrina, ZA) |
Assignee: | Van Reenen Steel (Proprietary) Limited (Gauteng, ZA) |
Appl. No.: | 492569 |
Filed: | June 20, 1995 |
Jun 21, 1994[ZA] | 94/4425 |
Current U.S. Class: | 37/398; 37/397; 37/399; D15/32 |
Intern'l Class: | E02F 003/46 |
Field of Search: | 37/395,396,397,398,399,195,444,455,457 172/719,751 403/374 |
1852671 | Apr., 1932 | Page | 37/398. |
1979738 | Nov., 1934 | Gibson | 37/398. |
2492905 | Dec., 1949 | Van Buskirk | 37/398. |
2689418 | Sep., 1954 | Van Buskirk | 37/398. |
2895239 | Jul., 1959 | Larsen | 37/398. |
3181257 | May., 1965 | Larsen | 37/398. |
3597865 | Aug., 1971 | Rumfelt | 37/396. |
4902473 | Feb., 1990 | Arata et al. | 420/105. |
5343641 | Sep., 1994 | Gregory | 37/396. |